Key Takeaways:
- Reverse Charge Mechanism (RCM) under GST shifts the tax payment liability from the supplier to the recipient.
- RCM applies mainly to notified goods and services (Section 9(3)), specified purchases from unregistered suppliers (Section 9(4)), and certain e-commerce services (Section 9(5)).
- GST payable under RCM must be paid in cash; existing ITC cannot be used for payment.
- Input Tax Credit (ITC) on RCM can be claimed later, subject to eligibility and return filing.
- Time of supply rules differ for goods and services under RCM and directly impact tax liability and interest.
- Proper self-invoicing, reporting in GSTR-3B, and compliance are critical to avoid penalties and ITC reversals.
Most businesses under GST generally operate on the assumption that the supplier is always the one who should collect and pay the tax. Such an assumption can cause a lot of problems especially when the transactions in question are covered by the Reverse Charge Mechanism (RCM). A significant number of taxpayers unknowingly miss the RCM liabilities on legal services, unregistered purchases, or e-commerce transactions. As a result, they face interest, penalties, and blocked input credits during audits.
The solution is to have a clear understanding of how the Reverse Charge Mechanism (RCM) works and at what point the responsibility for the tax payment is transferred from the supplier to the recipient.
This article demystifies the reverse change mechanism rcm under GST by outlining its definition, full form, different types, and the scope of its application. Businesses that understand the RCM regulations from the onset will not only be in a position to comply with the law but also efficiently handle their cash flow and, most importantly, avoid expensive GST surprises.
Let’s proceed then!
What Is Reverse Charge Mechanism (RCM)?
The Reverse Charge Mechanism (RCM) is a provision of GST whereby the person liable to pay tax is changed from the supplier to the recipient of goods or services.
Under the normal GST system, the supplier:
- Charges GST on the invoice
- Collects tax from the buyer
- Deposits it with the government
Under RCM, this flow is reversed. The registered person receiving the supply:
- Pays GST directly to the government
- Cannot pay tax using available ITC
- Can claim Input Tax Credit (ITC) later, subject to conditions
In short, RCM ensures tax collection even when suppliers are unregistered or when the government wants closer monitoring of certain sectors.
Normal GST vs Reverse Charge Mechanism
- Normal GST Payment Process
Supplier
↓
Issues Tax Invoice (GST Charged)
↓
Recipient Pays Invoice Amount + GST
↓
Supplier Deposits GST to Government
- GST Payment Under Reverse Charge Mechanism
Supplier (Registered or Unregistered)
↓
Issues Invoice (No GST Charged)
↓
Recipient Calculates GST Liability
↓
Recipient Pays GST Directly to Government
↓
Recipient Claims Input Tax Credit (ITC)
This structural difference is the foundation of the reverse charge mechanism RCM under GST.
When Is Reverse Charge Applicable Under GST?
The applicability of RCM under GST is defined under three specific provisions of the GST law. Each provision targets a different risk area for tax leakage.
A. Tax on Notified Supplies-Section 9(3)
Under Section 9(3) of the CGST Act, the government notifies certain goods and services where GST must be paid under RCM, regardless of whether the supplier is registered.
List of Notified Goods Under Section 9(3)
| S. No. | Description of Goods | Supplier | Recipient |
| 1 | Cashew nuts, not shelled or peeled | Agriculturist | Any registered person |
| 2 | Bidi wrapper leaves (tendu) | Agriculturist | Any registered person |
| 3 | Tobacco leaves | Agriculturist | Any registered person |
| 3A | Essential oils other than citrus fruit oils (e.g., peppermint, spearmint) | Any person | Any registered person |
| 4 | Silk yarn | Any person who manufactures silk yarn | Any registered person |
| 4A | Raw cotton | Agriculturist | Any registered person |
| 5 | Supply of lottery | State Government/UT/Local authority | Lottery distributor or selling agent |
| 6 | Used vehicles, old and used goods, waste and scrap, seized & confiscated goods | Central/State/UT/Local authority | Any registered person |
| 7 | Priority Sector Lending Certificate | Any registered person | Any registered person |
| 8 | Metal scrap | Any unregistered person | Any registered person |
In these cases, the registered person purchasing the goods is responsible for paying GST under RCM.
List of Services Covered Under RCM (Section 9(3))
| S. No. | Description of Services | Supplier | Recipient |
| 1 | Services by Goods Transport Agency (GTA) in respect of transportation of goods by road (RCM applies only if GTA has not opted for forward charge) | GTA | Registered persons, body corporates, firms, societies, casual taxable persons |
| 2 | Services provided by an individual advocate or firm of advocates | Advocate/firm | Any business entity |
| 3 | Services provided by an insurance agent to an insurance company | Insurance agent | Insurance company |
| 4 | Services provided by a recovery agent | Recovery agent | Bank, NBFC or financial institution |
| 5 | Services provided by a director to a company or corporate body (in professional/contractual capacity, not employer-employee salary) | Director | Company/corporate body |
| 6 | Services supplied by any person located in a non-taxable territory to a person in taxable territory (import of services) | Person outside India | Recipient in taxable territory |
| 7 | Manpower supply services provided by any person to a registered person | Any person | Registered person |
| 8 | Sponsorship services | Any person | Body corporate/partnership firm |
| 9 | Services provided by a business facilitator to a banking company or NBFC | Business facilitator | Bank/NBFC |
| 10 | Services provided by an agent of a business correspondent to a business correspondent | Agent of BC | Business correspondent |
…and any additional categories notified by CBIC from time to time
B. Purchases from Unregistered Suppliers – Section 9(4)
Section 9(4) deals with supplies received from unregistered suppliers by specified categories of registered recipients.
Unlike the original broad provision at GST launch, this section now applies only to notified classes of persons or supplies, as decided by the government from time to time.
List of Supplies Under Section 9(4)
| Section | Applicability of RCM on Purchases from Unregistered Suppliers | List of Goods/Services |
| Section 9(4) CGST Act | RCM applies only if notified for specific registered persons & specified goods/services. | Cement, capital goods, and supplies forming shortfall for registered real estate promoters. |
| Section 5(4) IGST Act | Inter-state counterpart; same applicability as CGST for notified cases. | Same as Section 9(4) items. |
Here, RCM ensures that GST is collected even if the supplier remains outside the GST framework.
C. E-commerce Transactions – Section 9(5)
E-commerce transactions operate under a unique compliance structure.
Under Section 9(5), e-commerce operators are made liable to pay GST on specific services supplied through their platform, even though they are not the actual service providers.
List of Specified Services Under Section 9(5)
| Sl. No. | Service Category (Notified Services) | Description / Notes |
| 1 | Passenger Transport Services | Services by way of transportation of passengers by: radio-taxi, motor-cab, maxi-cab, motor-vehicle, motorcycle, omnibus and similar vehicles supplied through an ECO platform. Applicable even if the actual service provider is unregistered. |
| 2 | Accommodation Services | Services of providing accommodation in hotels, inns, guest houses, clubs, campsites, or other commercial lodging places when supplied through an ECO platform, except where the person supplying such service through ECO is already liable for GST registration on their own (e.g., large hotels with mandatory registration). |
| 3 | Housekeeping Services | Services by way of housekeeping such as plumbing, carpentry, maintenance, cleaning, repair, and similar support services when supplied through an ECO platform and where the actual provider is not otherwise liable for registration. |
| 4 | Restaurant Services (including Cloud Kitchens) | Restaurant services supplied through an ECO platform, including cloud kitchens and food delivery services. This category was specifically added effective 1 January 2022 by notification, bringing services facilitated by food delivery platforms under ECO GST liability. |
In such transactions, the reverse charge mechanism shifts liability to the e-commerce operator instead of the individual service provider.
Time of Supply Under RCM
Determining the time of supply is critical because it decides:
- When GST becomes payable
- The tax period for compliance
- Interest liability in case of delay
The rules differ for goods and services.
Time of Supply for Goods Under RCM
The time of supply is the earliest of the following:
- Date of receipt of goods
- Date of payment
- 30 days from the date of invoice
If none of these can be determined, the date of entry in the recipient’s books is considered.
Time of Supply for Services Under RCM
For services, the earliest of:
- Date of payment
- 60 days from the date of invoice
If both are unavailable, the date of accounting entry applies.
Understanding this timeline is crucial for accurate RCM compliance.
Registration and Compliance Under RCM
Any registered person liable to pay tax under the Reverse Charge Mechanism must comply with additional obligations.
Key compliance requirements include:
- Mandatory GST registration (RCM liability applies even if turnover is below threshold)
- Payment of GST in cash (ITC cannot be used)
- Monthly reporting in GST returns
Failure to comply often leads to notices, penalties, and denial of Input Tax Credit (ITC).
Input Tax Credit (ITC) Under RCM
A common misconception is that GST paid under RCM is a cost. This is not entirely true.
GST paid under the reverse charge mechanism RCM is eligible for ITC, provided:
- The goods or services are used for business purposes
- The recipient is a registered person
- GST has been paid in cash
- Returns are filed correctly
Once these conditions are met, Input Tax Credit (ITC) can be claimed in the same or subsequent tax period.
What Is Self-Invoicing Under RCM?
When supplies are received from an unregistered supplier, the recipient must issue a self-invoice.
Self-invoicing involves:
- Creating a tax invoice in your own name
- Mentioning RCM applicability
- Calculating GST payable
- Maintaining proper records
This document becomes the basis for GST payment and later ITC claims.
Reporting RCM Transactions in GST Returns
Accurate reporting is a critical aspect of RCM under GST. These transactions must be disclosed separately in GST returns.
RCM Reporting Overview
| Particulars | GST Return | Disclosure |
| RCM on inward supplies | GSTR-3B | Table 3.1(d) |
| ITC on RCM | GSTR-3B | Table 4(A)(3) |
| Supplier-wise details | GSTR-1 | Not applicable |
| Self-invoice records | Internal books | Mandatory |
Incorrect reporting may result in discrepancies and ITC reversals.
Wrapping it Up
The Goods and Services Tax (GST) Reverse Charge Mechanism (RCM) is undoubtedly one of the most sensitive provisions under GST. Although it increases tax compliance and broadens the tax base, it also puts a greater burden on the registered person who receives the supply.
Knowing the situations in which RCM is applicable, the correct payment of tax, the claiming of Input Tax Credit (ITC), and the proper reporting of transactions are the necessary steps to be taken if one wants to stay away from penalties and cash flow problems. As the tax authorities are continually increasing their vigilance and matching of data, the businesses can no longer afford to be indifferent to the Reverse Charge Mechanism.
In essence, understanding RCM under GST goes far beyond mere compliance; it is about creating a tax efficient and future ready enterprise.
